{"id":"CVE-2026-107215","revision":"3716a39b5cdd421a9a663441b8c9f629","records":[{"revision":"3716a39b5cdd421a9a663441b8c9f629","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-107215","aliases":[],"title":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, extractPart allocates a byte slice directly from an attacker-controlled CFB directory-entry size before validating the sector chai…","description":"Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, extractPart allocates a byte slice directly from an attacker-controlled CFB directory-entry size before validating the sector chain or size domain. extractPart trusts the CFB directory entry streamSize for EncryptionInfo and EncryptedPackage allocations before validating the stream. When a crafted OLE compound file declares a negative or extremely large EncryptionInfo or EncryptedPackage stream size, the declared size reaches make with a negative length or forces a multi-gigabyte allocation, allowing an attacker to panic or exhaust process memory. No fixed version is available as of this review.","state":0,"publishedAt":"2026-10-07T18:17:19.213+00:00","modifiedAt":"2026-10-13T14:23:50.54+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/qax-os/excelize/commit/5f636f9dcde55911f14290060b017f0cc88cd694","https://github.com/qax-os/excelize/pull/2396","https://github.com/qax-os/excelize/security/advisories/GHSA-x2q3-8cjh-766f"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107215","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-789"],"productCriteria":["cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*"],"sourceDates":{"published":"2026-10-07T18:17:19.213","lastModified":"2026-10-13T14:23:50.540"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-107215","identifiers":["CVE-2026-107215"]},"retained":false,"historicalAffected":[]}],"coverage":[]}